Webhook Handler Patterns

This is the foundational skill you want before implementing any webhook endpoint. It teaches the critical three-step sequence: verify the signature first using the raw body, parse the payload second, then handle it idempotently third. Most developers get this order wrong and end up with security holes or duplicate processing. Built by Hookdeck, it covers practical patterns for idempotency checks, proper HTTP status codes for retry behavior, and framework-specific gotchas in Express, Next.js, and FastAPI. The quick reference tables are genuinely helpful. If you're writing webhook handlers in production, start here before jumping to provider-specific skills.

skills.sh installs: 448
GitHub stars: 100
last updated: Aug 21, 2026

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Install

$ npx -y skills add hookdeck/webhook-skills --skill webhook-handler-patterns --agent claude-code

Installs into .claude/skills of the current project.

Files

Webhook Handler Patterns

When to Use This Skill

Following the correct webhook handler order (verify → parse → handle idempotently)
Implementing idempotent webhook handlers
Handling errors and configuring retry behavior
Handling events that arrive out of order or are replayed after an outage
Understanding framework-specific gotchas (raw body, middleware order)
Building production-ready webhook infrastructure